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Trying to build custom extension for USB4/Thunderbolt #7508

Answered by ajgon
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Found the issue, let me answer for anyone stumbling into this:

The problem was, that I was using default talos installer image with kernel built by talos team, and with random signing key used by it. So when I introduced my image with thunderbolt module, naturally I didn't have this key and another one was created - thus creating divergence.

After I built my own kernel and my own installer using this guide everything clicked.

P.S. I think the kernel building guide has a mistake, the following line didn't work for me:

COPY --from=<custom kernel image> /lib/modules /lib/modules

had to replace it to

COPY --from=<custom kernel image> /lib/modules /kernel/lib/modules

to make everything work.

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@frezbo
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